Copying-machine.



No. 721,338. PATENTED PEB. 24,11903.

' P. SOENNBGKBN.

COPYING MACHINE.

APPLICATION FILED JULY 17, 1901.

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PATBNTBD FEB. 24, 190s. F. SOENNBGKEN.

vKGOPYING MACHINE. APPLICATION FILED .JULY 17, 1901.

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UNITED STATES- PATENT EEIcE.

FRIEDRICH soENNEoKEN, oF BONN, GERMANY.

CO PY |NG MACH I N E.

SPECIFICATION forming part of VIlletters' Patent No. 721,338, dated February 24, 1903.

Application filed July 17,1901. Serial No. 68,693. (No model.)

To all whom fn/tay concern:

Be it known that I, FRIEDRICH SOENNECKEN, a subject of the King of Prussia, GermanEmperor, and a resident of Bonn-on-the-Rhine, in the Province of the Rhine, German Empire, have invented certain new and useful Improvements in Copying-Machines, of which the following is an exact specification.

My invention relates to improvements in copying-machines providedv with endless paper-rolls, and has especially for its purpose to avoid the tearing of the paper.

In the copying-machines hitherto used the bearings of the supply-roll, as well as of the guide-roller situated inthe Water for lmoistening thepaper, Wererigidly fixed totheV frame of the machine. Hereby in using the copying-machine sometimes resistances in the movement occurred which, though small,. were sufficient for tearing the paper. On the other hand a great danger of tearing the paper arose near the winding-up roller, especially on account of the paper being moistened, and therefore very soft. This winding-up roller was rotated in the same way as the guide-roller, by means of belts, gearings, or the like from the copying-roller. Now in case the circumferential velocity of the Winding-up roller was not exactly the same as that of the copying-roller, which always occurred in case several layers of paper were wound up already, theA paper was torn, or in case it consisted of several sheets connected one to the other these sheets were easily separated. These disadvantages are done away with by the construction forming the object of the present invention, in which construction all the rollers, especially the supply-roll and the winding-up roller, are journaled in that way that they follow the slightest draw, so that a tearing of the paper is perfectly avoided. The supply-roll is therefore journaled in pendulum-rods, while the guide-roller situated in the water for moistening the paper is journaledin slots. The winding-up roller or drum and the guide-roller leading the paper from the copying-roll to the Winding-up roll or dru m are journaled loosely upon shafts and are rotated by means of Yelastic friction-couplings. In order to make my invention more clear, I refer to the accompanying drawings, in which- A Vto the axle e' of the roller e.

Figure 1 is a vertical section of the machine. Fig. 2 is a plan view of the same, while Figs. 3 and 4 are detail views of parts of the machine.

The general construction of the copyingmachine is the same as that of the copyingmachines hitherto used.

From the supply-roll a the endless paper b runs over the guide-roller d, situated within the Water-trough c. From there it is led between the roller e and the pressing-roller f. Uponthe roller@ a second pressing-roller g is situated, which pressing-roller is journaled in'slide-pi'eces g', guided in slots g2. The slide-pieces g can be pressed down by means of eccentrics g3, fixed to an axle g4, which vaxle can be turned by means of a handle g5.

After having passed between the rollers g and the paper-b is led over the leading-roller 71, to the winding-up roller or drum lo. Themachine is driven by means of a crank i, fixed The leadingroller h, as well as the drum lo, is rotated by means of the round belt l. The pivots a of the supply-roll a are journaled in hooks a2, pivoted at a3. The pivots d of the guideroller d are situated within slots d2. Now in case a drawing of the paper takes place, to which drawing the supply-roll does not follow immediately, a double surety against the tearing of the paper is created by the new arrangement. First, the supply-roll a, can oscillatearound the pivot as, and, second, the guide-roller d can'be raised within the slots d2.

The'pull of the paper can beregulated by means of the Weight of the guide-roller d and the positionof the slots d2.

The leading roller' h is loosely arranged upon the shaft h and is rotated by means of a spring h2, fixed to the same, which spring presses against the shaft h'. (See Fig. 4.) In a similar Way the winding-up drum lo is connected with its shaft 7c'. (See Fig. 3.) A projecting ring k2 is fixed to one side of the drum.

`Within this ring a spring 7c3 slides, which spring is fixed to the shaft Zd, so' that in case the shaft k'. rotates this rotation is imparted to the drum lf; by means of the Afriction between the spring k3 and the ring 7a2.

-By means of the roller h and the drum 7c,

being connected to their shafts in the manner described above it is attained that in case the IOC pull of the paper surpasses a certain limit the friction-couplings begin to slide, hereby avoiding a tearing of the paper.

Having thus fully described the nature of my invention, what I desire to secure by Letters Patent of the United States isl. In a copying-machine, the combination with a copying-roller, of a supply-roller journaled in pendulum-rods, a guide-roller guided in slots and a leading-roller loosely arranged upon a shaft and coupled to the same by means of a friction-coupling, substantially as described and for the purpose set forth.

2. In a copying-machine, the combination with a copying-roller, of a supply-roller journaled in pendulum-rods, a guide-roller journaled in slots, a leading-roller loosely arranged upon a shaft and coupled to lthe same by means of a friction-coupling, and a winding-up drum loosely arranged upon a shaft and rotated by means of a friction-coupling, as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRIEDRICH SOENNECKEN.

Witnesses:

CARL SCHMITT, CHARLES LEsIMPLE. 

